Testimony in the civil trial of a Wilson pediatrician charged with malpractice should wrap up today in Northampton County Court, with the jury beginning deliberations either today or tomorrow.

Defense testimony is scheduled to conclude this morning with the jury viewing the second half of a videotape with testimony from a Philadelphia child neurologist, Dr. Peter Berman.

Yesterday, Berman's taped testimony began, with the doctor saying that in the case of Tammy McNally, there was no evidence to suggest that she had suffered brain damage either before or during her Oct. 7, 1978 birth.

John and Theresa McNally of 1049 Northampton St., Easton, Tammy's parents, are seeking damages from Dr. H.C. Lee, the Wilson pediatrician who treated the child after her birth. When she was 3 months old, she was taken to Hahnemann Hospital in Philadelphia, where she remained for two years after the aspiration of stomach contents caused lung damage.

The McNallys say that Tammy's difficulties would have been lessened if Lee had diagnosed her condition earlier.

Berman said that her condition, gastroesophageal reflux, in which a person is unable to keep down food, was not caused by brain damage.

And pediatrician Dr. Robert A. Doughty testified that in his opinion, Dr. Lee's treatment of the infant was "well within the standards of care for a board-certified pediatrician.

"From the records, I believe his concerns and their timing were appropriate," Doughty said. On Tammy's second-month visit to Lee, on Nov. 29, the doctor noted that Tammy had lost weight. However, he thought at the time that the weight loss was caused by a mouth infection that made it painful for her to eat.

On her third month visit, on Dec. 27, 1978, he saw that she had continued to lose weight, although the infection had cleared up, and he ordered a range of tests at Easton Hospital before sending her to Hahnemann.

The child was hospitalized for the next 20 months.

Doughty also said that, contrary to the McNallys' claims, it was unlikely that earlier testing, after the November office visit, would have altered the investigation of her illness, and he said that tests conducted at that time "would have been exceedingly invasive."

He added, "The ultimate problem was notdiscovered for many months at Hahnemann." He agreed with previous testimony that the child was still strong enough to withstand corrective surgery when she was admitted to Hahnemann, but he said, "It would have been wrong to do the surgery without trying medical therapy."

She eventually had surgery in May. That surgery corrected the reflux problem, but her lungs had already been damaged.

Doughty also noted that along with the reflux problem, Tammy had difficulty with swallowing, "likely something she was born with, a lack of coordination or discoordination."

That problem led some doctors at Hahnemann to believe the reflux might stem from a neurological disorder, or brain damage. However, at the beginning of his videotaped testimony, Berman said that Tammy's problems were not due to brain damage.

Six-year-old Tammy took the stand herself yesterday morning, testifying without being sworn in because of her age. Dressed in a bright red dress, white shoes and knee socks, she appeared alert and happy, charming the jury and the audience at the trial before Judge Franklin Van Antwerpen.

She smiled through most of her brief appearance on the witness stand, telling attorney Dennis Ortwein, who is representing her and her parents with attorney Martin Cohen, that she goes to Paxinosa Elementary School in Easton, where she is in first grade. When he asked if she liked to go to school, she beamed and said, "Yeah!"

Standing before the jury, she pointed out the areas on her chest and abdomen where she has scars from the surgical procedures she underwent while in the hospital. "They're from when I was a baby," she told Ortwein, but when he asked her what had happened when she was a baby, she shrugged to indicate that she didn't know.

During a period when the jury was out of the courtroom, Judge Van Antwerpen approved exhibits that will be permitted to go into the deliberation room with the jury, including medical bills for the child's treatment.

Defense attorney Andrew Braunfeld had opposed allowing the jury to consider the bills, saying that many of them were irrelevant because witnesses had testified that Tammy would have needed the corrective surgery in any case.

However, the judge said that would be an issue for the jury to decide.

Braunfeld also asked that the judge dismiss the case as a non-suit, arguing that Dr. Judith Woods, a Nevada pediatrician who appeared as an expert witness for the McNallys, contradicted herself in testimony last week. Judge Van Antwerpen said, "Do you find her testimony incredible?" Braunfeld replied, "Your honor, she's been incredible to me for years."

He said her testimony was also in conflict with testimony from Dr. Douglas Holsclaw Jr., a pediatrician who treated Tammy at Hahnemann.

However, Judge Van Antwerpen denied the motion to dismiss the case, saying he had considered it over the weekend. He decided to let the case go to the jury, he said, "because there's still a glimmer - but only a little glimmer - there."